While unable to scroll parallel resources using command + left/right arrow keys, am able to use keyboard shortcut to change resource to next and previous, which is similar to ctrl + left/right arrow key usage in Logos 4 on Windows. Personally learned when parallel resources list is not visible, can use keyboard shortcuts to change resource.

Dr. Stratton Kearns:

Also, cannot use 'quick open' trick of double clicking on empty space of open book (ie. just to R of '+' ) to open next resource.

Using Logos 4.5 Beta 8 on Windows and Mac, can replicate 'quick trick' working on Windows, but not on Mac so added item to Feature Parity list (with reference to this thread).

Workaround is clicking "+" to open new Tab that shows prioritized list of resources have reference, then click desired resource (bit slower than double click trick).